So the question is - will someone write an installer for it and also a script to automate to make life easy? I'm not suggesting you do that - but I wonder whether that's what the opportunity is for someone?
Secondly, I'm inclined to agree with you - and that all the functionality will work so long as the right hardware is in the Mac Pro (eg Bluetooth 4.0, WIFI, a graphics cards that will support metal, etc etc.)
Of course it's possible
someone just need to take a time, write a script (patch script can be freely distributed, unlike modified (c) files) and get all the fame for it.